“Smart SVG Viewer” is a free, fast and convenient SVG image viewer with Thumbnail Gallery and Transparency Grid. It is a must-have tool for UI/UX design, Web design, and Graphic design.

Website: sla80.github.io/SmartSvgViewer

“Smart SVG Viewer” is an Alpha build, but it is already usable for viewing SVG images. Some of its features are unique:

• Shows SVG and SVGZ images with Transparency Grid (alpha channel), correct size in pixels, aspect ratio and scale.
• Thumbnail Gallery, Folder Tree, Quick Search box.
• Supports High-DPI screens. The application window is scaled to match the screen DPI scale, but image preview and thumbnails renders on device physical pixels, at a higher resolution and perfectly sharp (no blurring).
• Supports multi-screen systems. When you drag a window to another screen, it adapts to screen DPI.
• Export to PNG, SVG, SVGZ formats. Optional resize and antialiasing in PNG export.
• Lightweight. The executable file is < 130 KB in size. And the installer is an MSI file, < 800 KB.
• Native builds for x64 and ARM64 systems.
• Automatic check for updates. One-click updates are downloaded, installed and launched in just a few seconds.
• MS-PL License. Free for personal and commercial use.

• Implement your feature requests.
• Preferences window, Pop-up menus, preview zoom, UI/UX improvements, improved work with the Clipboard.
• Dark theme, Batch Conversion, Image Comparison, configurable SVG Optimizer integration.
• Obtain a certificate for signing the installer MSI package to get rid of the “Windows protected your PC” and/or “Unknown Publisher” warnings during installation.
• Support SVG Fonts viewing. With ability to export selected glyphs as SVG of course.

Changelog is here

Supported operating systems:

• Windows 11 64-bit (version 22H2, or newer)
• Windows 11 64-bit (older versions) with .NET Framework 4.8.1 Runtime installed.
• Windows 10 64-bit with .NET Framework 4.8.1 Runtime installed.

• Download the MSI installation package from “Smart SVG Viewer” website: sla80.github.io/SmartSvgViewer.
• Run it. If your Windows warns you that this MSI package has an “Unknown Publisher”, just skip this warning. If it shows а “Windows protected your PC” window, then click “More info” and “Run anyway” button. Soon I will receive a certificate for installer signing to make those warnings go away.

I couldn't find any working SVG viewer with Thumbnail Gallery. Most popular viewers don't work:

TEST.svg image content:

<svg xmlns="http://www.w3.org/2000/svg" width="400" height="400">
  <path fill="#FFF" d="M 281 187 L 208 174 L 156 228 L 145 154 L 78 121 L 145 88 L 156 14 L 208 67 L 281 55 L 246 121 Z"/>
  <rect x="171" y="200" width="150" height="179" fill="none" stroke="#000" stroke-width="10" stroke-opacity="0.25" vector-effect="non-scaling-stroke"/>
  <circle cx="138" cy="292" r="72" fill="#896CE6" opacity="0.5"/>
</svg>

As a UI/UX designer I often have to deal with SVG images at my job, and popular image viewers such as “IrfanView” and “XnView” cannot display the SVG images properly. If you work with SVG files, then of course you are aware of this trouble. BTW, I reported this issue to the tech support of both of these viewers, as well as to the developer of the library they both use to render SVG.

Once again, I searched the entire Internet, and did not find a single SVG viewer with a thumbnail gallery for Windows. We have a relatively large company, and I asked my colleagues what software they use to view SVG files, and it turned out that everyone (even the artists who create the SVG images) use either browsers or graphics editors to view SVG images one by one. Nobody knew any tool that could display the SVG thumbnail gallery.

That's why I decided to try making such an application myself. My minimum requirements for it were as follows: SVG image preview with transparency grid and correct size in pixels, thumbnail gallery, and displaying the dimensions of the picture. This was done in one weekend. Then I distributed it to my colleagues, started using it myself at work, and thought about what else is missing in this application. The search box was the first thing to add. It soon became clear that “Smart SVG Viewer” is much more convenient than “XnView”, which we use at work, and I decided that maybe “Smart SVG Viewer” should be able to display all types of images, not just SVG.

When I started this project, it later turned out that the new “XnView MP” app can display SVG images almost acceptably, but it needs some tweaking, and it still doesn't show the transparency grid on thumbnails, and “XnView MP” looks really terrible on a High-DPI screen. Therefore, I continued to develop my project.

Probably soon, after some code refactoring. For this purpose, I have already switched to MS-PL license to be able to distribute not only the compiled binaries, but also the source code. Because it was required by the license of SVG.NET library, which is a fork of a library developed by Microsoft and is released under the MS-PL license.

Requests for new features are accepted! If you need something to be added or improved, just contact me or fill a GitHub Issue. If your request is not too difficult to implement, I will try to do it ASAP.